Each column generally represents a single variable; however, one variable may span several columns. At the most basic level, a codebook describes the layout of the data in the data file and describes what the data codes mean. Codebooks are used to document the values associated with the answer options for a given survey question. Each answer category is given a unique numeric value, and these unique numeric values are then used by ...
The fetal attitude describes the position of the parts of your baby's body. The normal fetal attitude is commonly called the fetal position. 1  The head is tucked down to the chest.  The arms and legs are drawn in towards the center of the chest.
1 Frank breech: In this position, the babyâs buttocks are aimed at the birth canal with its legs sticking straight up in front of his or her body and the feet near the head. 2  Footling breech: In this position, one or both of the babyâs feet point downward and will deliver before the rest of the body.